<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            clearable
            v-model="queryInfo.query"
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table区域 -->
      <el-row>
        <el-table :data="goodsList" border style="width: 100%">
          <el-table-column type="index" label="#"></el-table-column>
          <el-table-column prop="goods_name" label="商品名称"></el-table-column>
          <el-table-column
            prop="goods_price"
            label="商品价格(元)"
            width="110px"
          ></el-table-column>
          <el-table-column
            prop="goods_weight"
            label="商品重量"
            width="130px"
          ></el-table-column>
          <el-table-column prop="add_time" width="220px" label="创建时间">
            <template slot-scope="scope">
              {{ scope.row.add_time | dataFormat }}
            </template></el-table-column
          >
          <el-table-column label="操作" width="150px">
            <template slot-scope="scope">
              <el-button
                type="primary"
                size="mini"
                icon="el-icon-edit"
              ></el-button>
              <el-button
                type="danger"
                size="mini"
                icon="el-icon-delete"
                @click="removeById(scope.row.goods_id)"
              ></el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-row>

      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  name: 'List',
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        // 显示当前页
        pagenum: 1,
        // 每页显示多少条数据
        pagesize: 7,
      },
      // 商品列表
      goodsList: [],
      // 总数据条数
      total: 0,
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取列表数据
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败!')
      }
      this.$message.success('获取商品列表成功!')
      this.goodsList = res.data.goods
      this.total = res.data.total
      //   console.log(res.data)
    },
    // 监听pagesize（每页多少条数据）的改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 监听pagenum（当前页）的改变
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 删除商品
    async removeById(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该文件, 是否继续?',
        '删除',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('删除操作已取消!')
      }
      const { data: res } = await this.$http.delete('goods/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败!')
      }
      this.$message.success('删除成功!')
      this.getGoodsList()
    },
    // 跳转添加商品页面
    goAddpage(){
        this.$router.push('goods/add')
    }
  },
}
</script>

<style lang='less' scoped>
</style>
